The only information for that plugin are:
The last link is for you, and contain the zip to download.
See "Problems with clear case plugin eclipse" for installing that zip.
You can also try the update site:
http://www3.software.ibm.com/ibmdl/pub/software/rationalsdp/clearcase/60/update/windows/
The OP Mohamed KALLEL adds:
I install it, but when run connect to Rational ClearCase, I get a popup with the message:
You do not have a license to run ClearCase
First, check if there is no obvious license issue, as described in this technote, using clearlicense
(or if there isn't any ACL right or license serer IP address issue).
Check also your exact version of ClearCase. If this is ClearCase LT, it might not be supported through an Eclipse plugin. If this is CCRC (ClearCase Remote Control), then this isn't the right plugin.